11980178116 has 9 divisors (see below), whose sum is σ = 20965694799. Its totient is φ = 5989979604.

The previous prime is 11980178083. The next prime is 11980178131. The reversal of 11980178116 is 61187108911.

The square root of 11980178116 is 109454.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 191545 + ... + 246271.

Almost surely, 2^11980178116 is an apocalyptic number.

11980178116 is the 109454-th square number.

It is an amenable number.

11980178116 is a deficient number, since it is larger than the sum of its proper divisors (8985516683).

11980178116 is an frugal number, since it uses more digits than its factorization.

11980178116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109458 (or 54729 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 43.

It can be divided in two parts, 11980 and 178116, that added together give a square (190096 = 436²).

The spelling of 11980178116 in words is "eleven billion, nine hundred eighty million, one hundred seventy-eight thousand, one hundred sixteen".